首页 > 网络编程 > JavaScript > 网页特效 > 其他特效 > 按钮定位 焦点图 一款双向无缝+按钮定位的焦点图实现代码 2010-11-26 23:04:01 作者： 做这个焦点图弄了大个晚上，感觉挺晕的~发上来给大家踩一下吧 双向无缝的原理很简单实现起来也不难，主要头痛的是在前后无缝与按钮定位之间的配合问题，不过还好现在总算OK了。 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>myFocus - tbhuabao</title> <style type="text/css"> *{margin:0;padding:0;border:0;list-style:none;} body{background:#fff;padding:20px;} /*=========mF_tbhuabao========*/ .mF_tbhuabao {background:#ddd;border:10px solid #333;overflow:visible;} .mF_tbhuabao .pic,.mF_tbhuabao .win{position:absolute;top:0;left:0;overflow:hidden;} .mF_tbhuabao .pic li{position:relative;float:left;overflow:hidden;} .mF_tbhuabao .txt li{position:absolute;z-index:2;width:100%;height:38px;line-height:38px;display:none;}/*默认标题高度*/ .mF_tbhuabao .txt li 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myFocus.extend({//*********************tbhuabao****************** mF_tbhuabao:function(par){var box=this.$(par.id);this.addList(box,['dot','txt','prev','next']);this.wrap([this.$c('pic',box)],'win');var pics=this.$c('pic',box),dot=this.$li('dot',box),txt=this.$li('txt',box),pre=this.$c('prev',box),nex=this.$c('next',box);var index=0,n=txt.length,t=par.time*1000;pics.innerHTML+=pics.innerHTML;for(var i=0;i<n;i++)dot[i].innerHTML='<a href="javascript:;">•</a>';pre.innerHTML='<a href="javascript:;">‹</a>';nex.innerHTML='<a href="javascript:;">›</a>';var win=this.$c('win',box),pic=this.$li('pic',box),dots=this.$c('dot',box),dotH=32,arTop=par.height/2-32;box.style.height=par.height+dotH+'px';win.style.cssText='width:'+par.width+'px;height:'+par.height+'px;';pics.style.width=par.width*2*n+'px';for(var i=0;i<n;i++){txt[i].style.bottom=dotH+'px'}for(var i=0;i<2*n;i++)pic[i].style.cssText='width:'+par.width+'px;height:'+par.height+'px;';pre.style.cssText=nex.style.cssText='top:'+arTop+'px;';eval(this.switchMF(function(){txt[index>=n?(index-n):index].style.display='none';dot[index>=n?(index-n):index].className=''},function(){myFocus.slide(pics,{left:-par.width*next});txt[next>=n?(next-n):next].style.display='block';dot[next>=n?(next-n):next].className='current'},'true'));eval(this.bind('dot','"click"'));eval(this.turn('pre','nex'))} }); myFocus.setting({ id:'myFocus',//焦点图ID style:'mF_tbhuabao',//风格样式 time:3,//切换时间间隔(秒) trigger:'click',//触发切换模式：'click'(点击)/'mouseover'(悬停) width:450,//设置宽度(主图区) height:296,//设置高度(主图区) txtHeight:'default'//文字层高度设置，'default'为默认高度，0为隐藏 }); </script> </head> <body> <div id="myFocus"><!--焦点图盒子--> <div class="loading"><span>请稍候...</span></div><!--载入画面--> <ul class="pic"><!--内容列表--> <li><a href="#"><img src="http://547d.ipc.la/img/myfocus/1.jpg" thumb="" alt="图片1来源于网络，版权属于作者" text="图片1更详细的描述文字" /></a></li> <li><a href="#"><img src="http://547d.ipc.la/img/myfocus/2.jpg" thumb="" alt="版权属于作者，图片2来源于网络" text="图片2更详细的描述文字" /></a></li> <li><a href="#"><img src="http://547d.ipc.la/img/myfocus/3.jpg" thumb="" alt="图片3来源于网络，版权属于作者" text="图片3更详细的描述文字" /></a></li> <li><a href="#"><img src="http://547d.ipc.la/img/myfocus/4.jpg" thumb="" alt="版权属于作者，图片4来源于网络" text="图片4更详细的描述文字" /></a></li> <li><a href="#"><img src="http://547d.ipc.la/img/myfocus/5.jpg" thumb="" alt="图片5来源于网络，版权属于作者" text="图片5更详细的描述文字" /></a></li> </ul> </div> </body> </html> [Ctrl+A 全选 注:如需引入外部Js需刷新才能执行]可随意更改大小的，里面的参数已经详细说明了，喜欢的就拿去吧
